438222336 has 40 divisors (see below), whose sum is σ = 1167455784. Its totient is φ = 146073600.

The previous prime is 438222329. The next prime is 438222341. The reversal of 438222336 is 633222834.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 438222297 and 438222306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141115 + ... + 144186.

Almost surely, 2^438222336 is an apocalyptic number.

It is an amenable number.

438222336 is an abundant number, since it is smaller than the sum of its proper divisors (729233448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

438222336 is an equidigital number, since it uses as much as digits as its factorization.

438222336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285322 (or 285306 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

The square root of 438222336 is about 20933.7606750436. The cubic root of 438222336 is about 759.5648108692.

The spelling of 438222336 in words is "four hundred thirty-eight million, two hundred twenty-two thousand, three hundred thirty-six".